[kpc655]

It's alive. and torque'y. working on some alternative valve cover options. the aluminum is cool...but too pricey. the fiberglass / carbon fiber will be the better option. if anyone is interested, PM me

can't seem to upload photos (jpg, gif, png....bmp)...something wrong on the bb>?

 

[Dr.G]

Having the same uploading issue.
I have kind of a wacky scanned number of pages.
Send me your email and I'll try to scan it for you.
It's not pretty, but there's info there. I think I have a DVD manual too

 

[ECARRILLO]

Heard kpc655 was able to finish the engine and got very good Dyno numbers. Can’t wait to be able to get one of those engines!

 

[kpc655]

Motor ran great. We'll be retuning a bit over the winter to pick up some power. A friend is working on a fiberglass / carbon fiber valve cover that's more era correct than stock and is more affordable than the aluminum versions out there. Shoot me a pm if you're interested.

4 attempts to upload a photo failed. Not sure what the deal is lately with photos Pm me for a pic

 

[gprocket]

Must be an iPhone thing...

 

[kpc655]

Must be! But u upload the wrong pick. That's the aluminum version! Haha. Still have the other pic?

 

[gprocket]

Must have been an Android thing...

 

[kpc655]

the nearly final product. new manifold in the works for under the intake

 

[Capp]

O.K., So what does that mean ? I'm confused by that- nothing new there however.

 

[kpc655]

Guess I could’ve worded that better. I originally routed the water up and over the intake. But I’m redesigning to use the 3 plugs in the pass side under the intake. Should look cleaner and cool more evenly.

 

[Capp]

Gotcha now. I went back a few posts and figured it out- forgot you were using a 155 head on a 115 block. Did you change studs or counterbore the head ?

 

[Dr.G]

Your manifold and valve cover really look terrific. Interested in your dyno numbers.
I purchased the formulaGT rear head water outlet which Peter says provides sufficient water flow to cool the head. I also have side brass outlets but probably would only use one for the heater and bypass.

 

[kpc655]

The manifold is a custom piece, made here in michigan. It's a bit longer than what's out there in europe and designed specifically for carbs (including spacing for 48's) including elimination of the injector relief in the head.

So far, i tested with a few different exhaust tube lengths, timing, jetting and also 4 and 8 plug configuration. The car is tuned with 110 leaded fuel now, so i expect some power gains when i re-tune with a lower octane fuel (faster burning). The timing for this engine needs is so much lower than the nord, that i should be able to get away with a lower octane (faster burning) fuel / worth testing anyway. Made pretty healthy numbers (peak torque was about 185 @ 5100 RPM / 191 hp @ 6100). But some more work to do... i should be able to get some more RPM out of it too

most importantly - seat of the pants it's FAST out of the corners. super improvement over my old Nord

 

[Capp]

Kpc655, Dr.G- for purposes of historical Alfa race-prep reference check out the twinspark cyl. head cooling/plumbing on the GTV race car currently up for bid on BAT (Bring a Trailer). I would imbed a link but I don't know how. Hint, hint...
I watched that car being built around 1992-93, I think. It was my first exposure to the Alfa twinspark, and as I recall Gary Valant, the owner/builder/driver stated concern for two things in his plumbing arrangement : keeping the intake charge cool, obviously, and avoidance of steam pockets in the internal cooling passages of the head. FWIW...

 

[kpc655]

Hi Capp, I've seen nord's and TS plumbed that way. Horst Kwech started that (i think) on some of his early nord engines. not a bad way to go at all. But i don't like how it lays over 1 side of the head. More aesthetically than anything.

My prototype was over the intake, coming from the back of the engine. Not bad, just a long run and it was secured to the intake. Which meant taking it off to get the intake off (to shim buckets...etc.). Plus it hid the intake manifold and didn't look to clean.

The next one will exit the side of the head from the 3 existing ports and snake underneath the intake, between the distributor and the head.

 

[Dovali]

There is enough room under the carbs :

I designed the intake manifold a litle bit higher so that a can take this route :

 

[Dr.G]

Gary Valant

Kpc655, Dr.G- for purposes of historical Alfa race-prep reference check out the twinspark cyl. head cooling/plumbing on the GTV race car currently up for bid on BAT (Bring a Trailer). I would imbed a link but I don't know how. Hint, hint...
I watched that car being built around 1992-93, I think. It was my first exposure to the Alfa twinspark, and as I recall Gary Valant, the owner/builder/driver stated concern for two things in his plumbing arrangement : keeping the intake charge cool, obviously, and avoidance of steam pockets in the internal cooling passages of the head. FWIW...

At a little over 22k, that car was a steal!

 

[ducfan]

Earlier in this thread KPC655 spoke of a carbon/fiberglass cam cover, did they ever get made? if so does anyone know who to contact regarding purchase
Many thanks

 

[ECARRILLO]

Send him a PM, he is good getting back. I love my cam cover!

 

[kpc655]

Shoot me a pm. Should be some extras in the upcoming batch.